Top Companies Using IBM z/OS

Products
Product
ZoomInfo Copilot
AI sales agent
GTM Workspace
AI workspace for smarter GTM
GTM Studio
Build and run GTM workflows triggered by buying signals
ZoomInfo MCP
Connect your AI to verified B2B data
Sales
Company and contact database
Marketing
Actionable ABM platform
Talent
Source the best and brightest
Operations
Lead routing and data quality
Data as a Service
ZoomInfo data for your GTM systems
Platform
Cloud partners
Ready, set, integrate
Platform overview
Connect industry-leading data across your entire tech stack
Marketplace
Unify teams, strategies, and data-driven technologies
Professional Services
Labs
Bring your AI and data-driven playbook to life
Data services
White glove services for large-scale and complex data requests
Enrich. Segment. Activate.
Solutions
Intelligence
Contact & company search
Define markets, discover ideal buyers
Lead generation
Convert contacts into pipeline
Buyer intent
Reach ready-to-buy prospects
Website visitor tracking
Turn page views into pipeline
Engagement
Sales automation
Streamline phone and email outreach
Conversation intelligence
Analyze every interaction
Website chat
Identify, engage, and route visitors
Web form optimization
Ask for less, deliver more
Ads audiences
Paid social on your target accounts
Orchestration
Workflows
Kickstart go-to-market activities
CRM enrichment
Clean, updated CRM
Predictive modeling
Meet your next customer
Data management
Automate engagement-ready data
Zoominfo in ChatGPT
Verified B2B intelligence in ChatGPT
Enterprise
Transformative solutions for industry leaders
API
Deliver data across business systems & workflows
Our Data
Overview
Global coverage
GTM Developers
Resources
Learn
Blog
Case studies
Resource center
Events
AI sales coach
Free tools
GTM plays
Help center
Company
About us
Careers
Partner program
Newsroom
Pricing

Filter Companies By

You're signed out.

2,146 companies using this technology

By IBM

z/OS is a 64-bit operating system for IBM mainframes.

Top industries utilizing this technology

Business Services
Custom Software & IT Services
Finance
Media & Internet
Insurance

1-10 of 2,146 Companies using IBM z/OS

Sort companies by

Revenue

1
Amazon
Technologies used by the company: 3,255
Amazon is a global e-commerce and cloud computing company founded in 1994 and headquartered in Seattle, Washington. The company operates through three main segments: North America, International, and Amazon Web Services (AWS). Amazon's retail platfor m offers millions of products across numerous categories through websites including amazon.com, amazon.ca, amazon.fr, amazon.de, and many others worldwide. The company manufactures electronic devices such as Kindle e-readers, Fire tablets, Fire TVs, and Echo smart speakers. Amazon provides services including AWS cloud computing, Kindle Direct Publishing for authors, marketplace platforms for third-party sellers, digital content streaming, and Amazon Prime membership program offering benefits like free shipping and media streaming. The company serves diverse customer segments including consumers, merchants, content creators, and enterprise clients across global markets. Read more
Additional technologies used by Amazon:
Apache Log4j
Ab Initio
Infinite Telecom
See 3,255 technologies
2
Walmart
Technologies used by the company: 2,828
Walmart Inc. engages in the operation of retail, wholesale, other units, and eCommerce worldwide. The company operates through three segments: Walmart U.S., Walmart International, and Sam's Club. It operates supercenters, supermarkets, hypermarkets, warehouse clubs, cash and carry stores, and discount stores under Walmart and Walmart Neighborhood Market brands; membership-only warehouse clubs; ecommerce websites, such as walmart.com.mx, walmart.ca, flipkart.com, PhonePe and other sites; and mobile commerce applications. The company offers grocery and consumables, including dairy, meat, bakery, deli, produce, dry, chilled or frozen packaged foods, alcoholic and nonalcoholic beverages, floral, snack foods, candy, other grocery items, health and beauty aids, paper goods, laundry and home care, baby care, pet supplies, and other consumable items; fuel, tobacco and other categories. It is also involved in the provision of health and wellness products covering pharmacy, optical and hearing services, and over-the-counter drugs and other medical products; and home and apparel including home improvement, outdoor living, gardening, furniture, apparel, jewelry, tools and power equipment, housewares, toys, seasonal items, mattresses and tire and battery centers. In addition, the company offers consumer electronics and accessories, software, video games, office supplies, appliances, and third-party gift cards. Further, it operates digital payment platforms; and offers financial services and related products, including money transfers, bill payments, money orders, check cashing, prepaid access, co-branded credit cards, installment lending, and earned wage access. Additionally, the company markets lines of merchandise under private brands, including Allswell, Athletic Works, Equate, and Free Assembly. Read more
Additional technologies used by Walmart:
BlackBerry Enterprise Server
Cinema 4D
Apache Log4j
See 2,828 technologies
3
Apple
Technologies used by the company: 2,511
Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services. Founded in 1976 by Steve Jobs, Steve Wozniak, and Ronal d Wayne, Apple has established itself as a global leader in innovation, known for creating premium products that integrate hardware, software, and services into a seamless ecosystem. The company's business model centers on delivering high-quality, user-friendly devices with distinctive industrial design and intuitive interfaces, complemented by a growing portfolio of digital services and subscription offerings. Apple operates through a vertically integrated approach, maintaining control over the entire product development process from design through manufacturing and retail distribution. The company's value proposition emphasizes product differentiation through proprietary technologies, seamless device integration, and a focus on user privacy and security. Apple serves diverse customer segments including tech enthusiasts, creative professionals, students, enterprises, and mass-market consumers through multiple channels including its iconic retail stores, online platforms, and authorized resellers worldwide. The company's integrated ecosystem strategy encourages customer loyalty by creating interconnected experiences across devices and services, positioning Apple as both a technology innovator and lifestyle brand. With substantial investments in research and development, Apple continues to explore emerging technologies while maintaining its commitment to design excellence, quality craftsmanship, and superior user experience that have defined the brand since its inception. Read more
Additional technologies used by Apple:
HEC-RAS
BlackBerry Enterprise Server
Cinema 4D
See 2,511 technologies
4
UnitedHealth Group
Technologies used by the company: 3,058
Founded in 1977, UnitedHealth Group is a leading health insurance and healthcare services company. The organization provides a comprehensive range of health insurance plans, including medical, dental, vision, and life insurance coverage for individua ls and businesses. UnitedHealth Group also offers healthcare delivery services, technology solutions, and pharmacy benefits management through its diverse portfolio of subsidiaries operating across multiple countries worldwide. Read more
Additional technologies used by UnitedHealth Group:
Apache Log4j
Ab Initio
Revolut for Business
See 3,058 technologies
5
CVS Health
Technologies used by the company: 2,913
CVS Health is building a world of health around every consumer. Their unmatched reach allows them to deliver high-quality, affordable health care when and how individuals choose. They are on a mission to deliver superior and more connected experience s, lower the cost of care and improve the health and well-being of those we serve. Read more
Additional technologies used by CVS Health:
rkt
CIENCE
JScript
See 2,913 technologies
6
McKesson
Technologies used by the company: 2,471
McKesson Corporation provides pharmaceuticals and medical supplies in the United States and internationally. The company operates in two segments, McKesson Distribution Solutions and McKesson Technology Solutions. The McKesson Distribution Solutions segment distributes branded and generic pharmaceutical drugs, and other healthcare-related products; and provides practice management, technology, clinical support, and business solutions to community-based oncology and other specialty practices. This segment also provides specialty pharmaceutical solutions for pharmaceutical manufacturers; and medical-surgical supply distribution, logistics, and other services to healthcare providers. In addition, this segment operates retail pharmacy chains in Europe and Canada, as well as supports independent pharmacy networks in North America and Europe; and supplies integrated pharmacy management systems, automated dispensing systems, and related services to retail, outpatient, central fill, specialty, and mail order pharmacies. This segment serves retail national accounts, including national and regional chains, food/drug combinations, mail order pharmacies, and mass merchandisers; and institutional healthcare providers, such as hospitals, health systems, integrated delivery networks, and long-term care providers, as well as offers its services to pharmaceutical manufacturers. The McKesson Technology Solutions segment provides clinical, financial, and supply chain management solutions to healthcare organizations. McKesson Corporation was founded in 1833 and is headquartered in San Francisco. Read more
Additional technologies used by McKesson:
BlackBerry Enterprise Server
Cinema 4D
Apache Log4j
See 2,471 technologies
7
Microsoft
Technologies used by the company: 3,474
Microsoft Corp. engages in the provision of developing and marketing software and hardware services. Its products include operating systems for computing devices, servers, phones and intelligent devices. It also offers server applications for distrib uted computing environments, productivity applications, business solution applications, desktop and server management tools, software development tools, video games, and online advertising. It operates through the following segments: Productivity and Business Processes, Intelligent Cloud, and More Personal Computing. The Productivity and Business Processes segment consists of products and cloud services in portfolio of productivity, communication, and information services. It comprises of office commercial, office consumer, and Microsoft Enterprise Services dynamics business solutions. The Intelligent Cloud segment offers hybrid server products and cloud services. It comprises of server products and cloud services and enterprise services. The More Personal Computing segment comprises of windows, devices, gaming, and search advertising. The company was founded by William Henry Gates III in 1975 and is headquartered in Redmond, WA. Read more
Additional technologies used by Microsoft:
VirtualBox
Flippingbook
Apache Log4j
See 3,474 technologies
8
Toyota Motor Corporation
Technologies used by the company: 1,142
Toyota Motor Corporation is a Japanese automotive manufacturer headquartered in Toyota, Aichi, Japan. The Company operates through three business segments. The Automobile segment is engaged in the design, manufacture and sale of car products, includi ng sedans, minivans, 2BOX cars, sport-utility vehicles and trucks, as well as the related parts and accessories. The Finance segment is involved in the provision of financial services related to the sale of the Company's products, as well as the leasing of vehicles and equipment. The Others segment is involved in the design, manufacture and sale of housings, as well as the information and communication business. As of March 31, 2014, the Company had 542 subsidiaries and 203 associated companies. Read more
Additional technologies used by Toyota Motor Corporation:
HPE ALM
Centro
Changepoint
See 1,142 technologies
9
Cigna
Technologies used by the company: 2,103
The Cigna Group is a global health company committed to improving health and vitality. We relentlessly challenge ourselves to partner and innovate solutions for better health. Our global workforce works through Cigna Healthcare and Evernorth Health S ervices to fulfill the customer relationships we serve. Read more
Additional technologies used by Cigna:
BlackBerry Enterprise Server
Apache Log4j
Adobe Fireworks
See 2,103 technologies
10
Shell
Technologies used by the company: 1,581
Shell is a global group of energy and petrochemical companies. Shell helps to meet the world's growing demand for energy in economically, environmentally and socially responsible ways.
Additional technologies used by Shell:
BlackBerry Enterprise Server
Apache Log4j
Adobe Fireworks
See 1,581 technologies

Best Alternatives for IBM z/OS

Usage statistics of alternative technologies to IBM z/OS, based on Zoominfo's comprehensive dataset

Ubuntu Unix CentOS Linux Debian IBM z/OS

Products owned by IBM

A closer look at IBM's additional technologies: understanding their comprehensive range of digital tools and creative solutions

SoftLayer

IBM AS/400

IBM (common)

IBM Web Content Manager

IBM SPSS

See more technologies

Additional top technologies lists

See additional lists of companies utilizing top technologies, ranked by revenue, size, and funding.

Frequently Asked Questions Regarding IBM z/OS

What is the IBM z/OS technology?

z/OS is a 64-bit operating system for IBM mainframes. For more information,

How many companies added the IBM z/OS technology in the last month?

78 companies added IBM z/OS to their tech stack in the last month.

What is IBM z/OS technology’s market share?

IBM z/OS market share is 0.27% out of all the technologies in the same category.

What companies are using IBM z/OS?

From the data gathered in Zoominfo, Amazon, Walmart, Apple, UnitedHealth Group, CVS Health, are using the IBM z/OS technology. You can see the full list in the above results table.

How many companies are using IBM z/OS?

2146 companies are using IBM z/OS.

Which industries do companies commonly use IBM z/OS for their needs?

Companies in Business Services, Custom Software & IT Services, Finance commonly use IBM z/OS.

What are the best alternatives for IBM z/OS?

According to Zoominfo’s data Ubuntu, Unix, CentOS, Linux, Debian, are competitors of IBM z/OS. For more information,

See more information about IBM z/OS

Get Started with ZoomInfo

Sign Up for Free

Get started for free! No credit card needed. Enjoy up to 25 free contacts each month at no cost.

Supercharge Your Prospecting

Search ZoomInfo's database of 106M+ companies and 140M+ professionals to find your next lead.

Grow Your Business

Reveal both personal and business contact details, including emails and phone numbers, and close your most valuable buyers.

Most Searched Industries

Construction Law Firms & Legal Services Business Services Finance Manufacturing Agriculture Software Accounting & Accounting Services Retail Healthcare Energy, Utilities & Waste Treatment Telecommunications Transportation Real Estate

People Search Company Search

Filter Companies By

Industry

Location

Type

Size

You're signed out.

2,146 companies using this technology

By IBM

Top industries utilizing this technology

Best Alternatives for IBM z/OS

Products owned by IBM

Additional top technologies lists

Top Companies utilizing OS/2

Top Companies utilizing FreeRTOS

Top Companies utilizing Oracle Solaris (Formerly Sun Solaris)

Top Companies utilizing DeltaV Distributed Control System

Frequently Asked Questions Regarding IBM z/OS

Get Started with ZoomInfo

Sign Up for Free

Supercharge Your Prospecting

Grow Your Business

Test Drive ZoomInfo's Directories

Filter Companies By

Industry

Location

Type

Size

You're signed out.

Top Companies Using IBM z/OS

2,146 companies using this technology

By IBM

Companies adopted this tech in the last month

The market share of the technology in its category

Top industries utilizing this technology

Best Alternatives for IBM z/OS

Products owned by IBM

Additional top technologies lists

Top Companies utilizing OS/2

Top Companies utilizing FreeRTOS

Top Companies utilizing Oracle Solaris (Formerly Sun Solaris)

Top Companies utilizing DeltaV Distributed Control System

Frequently Asked Questions Regarding IBM z/OS

Get Started with ZoomInfo

Sign Up for Free

Supercharge Your Prospecting

Grow Your Business

Test Drive ZoomInfo's Directories